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#ifndef _FRM_STRINGS_HXX_
#define _FRM_STRINGS_HXX_

namespace binfilter {
//.........................................................................
namespace frm
{
//.........................................................................

struct ConstAsciiString
{
    const sal_Char* ascii;
    sal_Int32       length;

    inline  operator const ::rtl::OUString () const;
    inline  operator const sal_Char* () const { return ascii; }

    inline ConstAsciiString(const sal_Char* _pAsciiZeroTerminated, const sal_Int32 _nLength);
    inline ~ConstAsciiString();

private:
    mutable ::rtl::OUString*    ustring;
};

//------------------------------------------------------------
inline ConstAsciiString::ConstAsciiString(const sal_Char* _pAsciiZeroTerminated, const sal_Int32 _nLength)
    :ascii(_pAsciiZeroTerminated)
    ,length(_nLength)
    ,ustring(NULL)
{
}

//------------------------------------------------------------
inline ConstAsciiString::~ConstAsciiString()
{
    delete ustring;
    ustring = NULL;
}

//------------------------------------------------------------
inline ConstAsciiString::operator const ::rtl::OUString () const
{
    if (!ustring)
        ustring = new ::rtl::OUString(ascii, length, RTL_TEXTENCODING_ASCII_US);
    return *ustring;
}

#define DECLARE_CONSTASCII_USTRING(name)    \
    extern ::binfilter::frm::ConstAsciiString name

#define IMPLEMENT_CONSTASCII_USTRING(name, asciivalue)  \
    ::binfilter::frm::ConstAsciiString name(asciivalue, sizeof(asciivalue) - 1)

}   // namespace frm
//.........................................................................

}//end of namespace binfilter
#endif // _FRM_STRINGS_HXX_

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